MANTON, Circuit Judge.
Plaintiff sued on claims 3, 11, and 12 of the Ferris patent, No. 1,468,595, issued September 18, 1923, for a broaching machine. The defendant answered and filed a counterclaim for infringement of claims 6 and 7 of its Lapointe patent, No. 1,109,847, granted September 8, 1914, for its broaching machine.
A broach is a variety of a machine cutting tool. It consists of a rod sometimes having one tooth, but usually a succession of teeth of...
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